Spring 2002

Analysis Of Existing Solid Waste Management Situation In Dhaka City

Muhammed Wahid-un-nabi, H M Imran

 

Based on secondary data collected from different sources, required dumping area for solid waste in Dhaka city was calculated for the next 10 years, which is 1109.5 acres. At the same time by using empirical formula, the quantity of rapidly decomposable gas was calculated to be 13.9 ft3/lb, slowly decomposable gas 16.7 ft3/lb and development of leachate was calculated as 1.70 106 gal per 10 years. It has been found that due lack of landfill regulation the solid wastes are indiscriminately disposed around the city. Due to this indiscriminate disposal of solid waste, the gas and leachate are emitted to the natural environment, which is creating potential environmental impacts. The potential impacts are ozone depletion, toxic VOCs in air, odor, noise, birds, rodents, insects etc., litter dust, explosion and fire hazards, vegetable damage, soil pollution, surface water pollution. A unique landfill regulation and solid waste management policy is required to control the emission from the solids. Otherwise it will create an environmental disaster in the future.